What is the best temperature for storing green tea?

To maintain or extend the shelf life of tea.

It should be stored at low temperatures, preferably between 0 5.

Temperature has a great influence on the aroma, soup color, and taste of tea, especially in the south.

In July and August, the temperature can sometimes reach more than 40, even if the tea has been dried and stored in the dark, it will quickly deteriorate, making green tea not green, black tea not fresh, and flower tea not fragrant.

The humidity should not be too high or too dry. If the humidity is too high, it is easy for the tea to deteriorate and grow mold; If it is too dry, the transformation of tea will be too slow, and the temperature should not change suddenly, and the temperature difference will change too suddenly, which will affect the tea soup.

The water-based nature gives liveliness to the taste.

Tea is easy to absorb moisture and absorb peculiar smells, so special attention should be paid to whether the packaging and storage are appropriate, in addition to the requirements of beauty, convenience, hygiene and protection of products, it is also necessary to pay attention to moisture and prevent odor pollution during storage to ensure the quality of tea.

The best storage temperature for green tea leaves is 0-5. Here are some of the storage taboos for green tea:

1. Avoid moisture: green tea is a loose and porous hydrophilic substance, so it has strong moisture absorption and moisture resistance. When storing green tea, the relative humidity is more suitable at 60%, and more than 70% will cause mildew due to moisture absorption, and then acidify and deteriorate.

2. Avoid sunlight: Sunlight will promote the oxidation of green tea pigments and esters, and can decompose chlorophyll into magnesium chlorophyll. Green tea leaves are stored in glass containers or transparent plastic bags, and after being exposed to sunlight, their internal substances will have a chemical reaction, which will deteriorate the quality of green tea leaves.

High temperature will accelerate the degradation of chlorophyll in green tea, and chlorophyll will continue to convert to demagnesium chlorophyll, and bright green will turn dark brown. The automatic oxidation of tea polyphenols and other substances at high temperatures will also be intensified. According to research, for every 10 times the temperature increases, the rate of browning of green tea is accelerated by 3 5 times, and the tea leaves are easy to age and deteriorate.

3. Avoid oxygen: chlorophyll, aldehydes, esters, vitamin C, etc. in green tea are easy to combine with oxygen in the air, and the oxidized green tea leaves will make the green tea tea soup red and dark, so that the nutritional value is greatly reduced.

4. Avoid high temperature: The best storage temperature of green tea is 0-5. If the temperature is too high, the amino acids, sugars, vitamins and aromatic substances in the tea will be decomposed and destroyed, so that the quality, aroma and taste will be reduced.

5. Avoid peculiar smell: green tea contains polymer palmitase and terpene dilute compounds. This type of substance is extremely unstable and can absorb odors extensively. Therefore, when tea leaves are mixed with odorous items for storage, they will absorb odors and cannot be removed.

The best temperature for the preservation of tea leaves is between 0-5 degrees in the refrigerator: refrigerated +5 degrees, frozen, -18 degrees tea leaves can be put in the refrigerator for refrigeration.

Green tea is usually stored at 2 degrees to minus 10 degrees, and the freshness should be sealed and refrigerated below minus 10 degrees.

The best way to store green tea is to store it in the refrigerator, and the best temperature for storage is about minus 5 degrees. This temperature can preserve the freshness of green tea to a large extent.

Tea, especially green tea, is not easy to keep, even professional tea merchants can generally only guarantee that the taste will not change for three months, such as stored in the freezer for a year has passed the best drinking period, but it does not mean that it must be spoiled and deteriorated, please note that the best drinking period is not equivalent to spoilage, but the taste is poor, but it can still be drunk.

The length of time green tea can be stored depends on the type of tea and the conditions under which it is preserved. Taking into account the material of the packaging and the ambient temperature, it is best to store it in the refrigerator.

The general shelf life of green tea is 12 months to 18 months, but if there are conditions, you can keep the tea for a few years and the tea aroma of new tea, and there will be no fragrance of new tea for one or two months when the storage conditions are poor.

In addition, when can green tea be preserved until when it can't be drunk is another matter, as long as it is not mildew, there is no other smell produced, it is drunk by someone, so that green tea can be preserved for a long time, but there is no new tea aroma, and the taste and aroma are greatly reduced.

Therefore, preserving green tea is also different from person to person.

About 80 degrees is appropriate. The first brew is 15 seconds, the second brew is 20 seconds, the third brew is 30 seconds, and the fourth brew is 40 seconds. Green tea is an unfermented tea, most of the nutrients of fresh leaves are retained in the tea leaves, the water temperature should not be too high when brewing, and the brewing time should not be too long, otherwise it will damage the active substances in the tea.

Brewing tips for green tea:

1. Tea set. Green tea is usually brewed in a glass (pot), porcelain cup or tea bowl with good transparency. The porcelain inside the cup and bowl is white, which is convenient for setting off the turquoise tea soup and tea leaves.

2. The water quality of making green tea should be good. Clean, high-quality mineral water is usually used, but purified tap water can also be used. The pH of the water.

It is neutral or slightly acidic, do not use alkaline water, so as not to make the tea soup dark.

3. The ratio of tea to water is usually 1:50-1:60 (that is, 50 ml-60 ml of water for 1 gram of tea) is appropriate, so that the tea soup brewed is moderately thick and mellow.

4. The brewing technique requires the holding of the kettle to pour water into the teacup, and the gesture of the phoenix nodding is used to make the injected hot water impulse tea, floating up and down, and the tea juice is also easy to brew. In addition, when brewing, pour a small amount of hot water to soak the tea leaves, and then fill the water to 1 cm-2 cm away from the edge of the cup.

To maintain or extend the shelf life of tea, it should be stored at low temperatures, preferably between 0 5.

Temperature has a great impact on the aroma, soup color, and taste of tea, especially in South Oak Track.

In July and August, the temperature can sometimes reach more than 40, even if the tea has been dried and stored in the dark, it will quickly deteriorate, so that the green tea is not green, the black tea is not fresh, and the flower tea is not fragrant.

The humidity should not be too high or too dry. If the humidity is too high, it is easy for the tea to deteriorate and grow mold; If it is too dry, the transformation of tea will be too slow, and the temperature should not change suddenly, and the temperature difference will change too suddenly, which will affect the liveliness of the taste given by the water nature of the tea soup.

Tea is easy to absorb moisture and absorb peculiar smells, so special attention should be paid to whether the packaging and storage are appropriate, in addition to the requirements of beauty, convenience, hygiene and protection of products, the hall ruler also needs to pay attention to moisture-proof and prevent odor pollution during storage to ensure the quality of tea.

1. The national standard for tea storage stipulates that the storage temperature of green tea should be controlled below 10, and the relative humidity should be below 50%, and the storage of green tea should also pay attention to sealing, light, moisture and odor.

2. Green tea is very easy to absorb moisture, so it is necessary to keep the dryness of the environment, otherwise the chlorophyll will be rapidly degraded, and the tea polyphenols will accelerate the oxidation, so the water content is best when it is stored for a long time at 2%-3%.

3. Green tea is best stored at a temperature of 0 10, and long-term storage is best at about 0 5, and the temperature should never be lower than zero degrees or higher than 10.